Wristalarm



FIG. 1 is a perspective view of a wristalarm showing my new design, with the broken line showing for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a front elevational view thereof; and,

FIG. 3 is a left side elevational view thereof, with the opposite side being a mirror image. 

The ornamental design for a wristalarm, as shown and described. 